A solid-liquid separation fermenter

Abstract

This utility model relates to the field of fermentation waste treatment and environmental protection equipment technology, and discloses a solid-liquid separation fermentation tank, including a support frame, a tank body installed on top of the support frame, and a separation component below. The tank body is connected to the separation component through a connecting pipe. The separation component is located in a cavity surrounded by a first cover and an openable second cover. It also includes a rotating drum, spiral blades, and a screen. The screen is composed of a first screen and a second screen, and is connected to a positioning hole on the rotating drum by a positioning block and fixed by a clamp. The rotating drum is driven to rotate by a drive component, and solid-liquid separation is achieved by combining centrifugal force and spiral thrust. The liquid is discharged through the liquid outlet, and the solid is discharged through the slag outlet, with a baffle in between. This utility model, through the split screen and positioning clamp structure, realizes convenient disassembly and assembly of the screen, solves the problems of difficult cleaning of dead corners and easy fermentation and deterioration of residues in existing equipment, and significantly improves the hygiene and maintenance efficiency of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of fermentation waste treatment and environmental protection equipment technology, and in particular to a solid-liquid separation fermentation tank. Background Technology

[0002] Industries such as liquor brewing, corn deep processing, and bioengineering generate large amounts of organic waste liquids, including liquor lees, rice residue, and corn pulp residue. To achieve resource recycling and reduce environmental pollution, these waste liquids typically undergo fermentation treatment, followed by solid-liquid separation to obtain fermentation liquid and solid feed or fertilizer, respectively. In existing treatment processes, solid-liquid separation is a crucial step, directly impacting the quality and utilization rate of subsequent products.

[0003] However, most solid-liquid separation devices currently on the market employ an integrated screw extruder or centrifuge structure. The screen in these devices is typically designed as a complete cylindrical shape and fixedly installed inside a closed casing, with the drum and screw blades located at the center of the screen. Because the fermented material often has a certain degree of viscosity and is rich in microorganisms, after the separation process, a large amount of fine residue easily adheres to the screen pores, the base of the screw blades, and the dead corners of the casing.

[0004] This traditional closed and integrated structural design makes cleaning the equipment's interior exceptionally difficult. Operators often struggle to open the outer casing and remove the internal screens for thorough cleaning without destructive disassembly or the use of specialized lifting tools. Over time, residual organic materials ferment, rot, and mold inside the equipment, producing unpleasant odors, corroding metal parts, and breeding harmful bacteria that severely contaminate subsequent batches of fermentation material, significantly impacting fermentation quality and the equipment's operational stability.

[0005] Therefore, this invention proposes a solid-liquid separation fermenter to address the shortcomings of existing technologies. Utility Model Content

[0006] In view of the problems in the existing solid-liquid separation fermenters, such as the closed internal structure of the solid-liquid separation mechanism and the difficulty in disassembling and cleaning the integrated screen and drum, which leads to the fermentation and deterioration of residues in the dead corners of the equipment and the growth of miscellaneous bacteria, seriously affecting the fermentation environment and product quality, this utility model aims to provide a solid-liquid separation fermenter with an improved structure that can be easily disassembled and cleaned without dead corners.

[0007] This utility model provides a solid-liquid separation fermenter, comprising: a support frame, a tank body installed on top of the support frame, a top cover sealed to the tank body by a first latch, and a stirring assembly installed on the top cover; a connecting pipe is connected to the bottom of the tank body, and a valve is installed on the connecting pipe; a first cover fixed to the support frame, and a second cover rotatably connected to the first cover, the second cover being sealed to the first cover by a second latch, and a separation assembly installed in the cavity formed by the first cover and the second cover.

[0008] The separation assembly includes a rotating drum rotatably mounted inside the first housing via a bearing seat, spiral blades fixed to the surface of the rotating drum, and a screen covering the outside of the rotating drum. The screen includes a first screen and a second screen, with the first screen and the second screen connected and fixed together. A positioning block is provided at the left end of the screen, and a positioning hole adapted to the positioning block is provided on the rotating drum. After the screen is positioned and connected to the rotating drum via the positioning block, the positioning hole, and the rotating drum, the screen is fixed to the rotating drum by a clamp.

[0009] Furthermore, the end of the connecting pipe away from the tank body passes through the first cover and communicates with the rotating drum, and the rotating drum is provided with a discharge port; the bottom of the first cover is provided with a liquid discharge port and a slag discharge port, and both the first cover and the second cover are provided with partitions.

[0010] Preferably, the first screen is connected and fixed to the second screen by fixing bolts. When the fixing bolts are removed, the first screen and the second screen can be disassembled and removed from the drum. This split structure combined with the bolt connection greatly facilitates the independent cleaning and maintenance of the screen and solves the problem that traditional cylindrical screens cannot be disassembled.

[0011] Preferably, the solid-liquid separation fermenter further includes a drive assembly mounted on the support. The drive assembly includes a second motor, a first transmission wheel, a second transmission wheel, and a transmission belt. The second motor drives the first transmission wheel to rotate, and the first transmission wheel drives the second transmission wheel fixed to the left end of the drum to rotate via the transmission belt, thereby providing stable power for the high-speed rotation of the drum and achieving efficient centrifugal separation.

[0012] Preferably, the stirring assembly includes a first motor, a stirring shaft, and stirring blades; the first motor is mounted on the top cover, drives the stirring shaft to rotate, and the stirring blades are fixed on the stirring shaft and located inside the tank. The stirring assembly performs all-round stirring of the materials to ensure that the fermentation raw materials are mixed evenly and promote the fermentation reaction.

[0013] Preferably, the baffle is located between the liquid discharge port and the slag discharge port, and the baffle blocks the liquid phase passing through the screen from entering the slag discharge port. The design of the baffle strictly separates the liquid collection area from the solid discharge area in physical space, effectively preventing the filtrate from splashing into the dry slag and improving the purity of solid-liquid separation.

[0014] Preferably, the top cover is provided with a feed inlet, through which the waste residue water to be treated is injected into the tank, facilitating the material feeding operation.

[0015] Preferably, the spiral blades extend along the axial direction of the drum, and the spiral blades are configured to push the solid phase intercepted by the screen to the right side of the drum, thereby realizing the continuous automatic conveying and discharge of solid waste using the spiral thrust.

[0016] Preferably, after the second cover is rotated open and the clamp and the fixing bolt are loosened, the screen is separated from the drum for impurity cleaning; after the first lock is released and the top cover is removed, the inside of the tank and the stirring blade are exposed for residual material cleaning, realizing the visualization and thorough cleaning of the core components of the whole machine, ensuring the long-term hygienic operation of the equipment.

[0017] This utility model has the following beneficial effects: 1. This utility model, by setting a rotatable and openable second cover and a split screen assembly composed of a first screen and a second screen, combined with a fixing method using positioning blocks, positioning holes, and clamps, solves the problem of the closed internal structure of the solid-liquid separation mechanism in existing fermentation equipment, the difficulty in disassembling and cleaning the integrated screen and drum, which leads to the easy fermentation, deterioration, and growth of miscellaneous bacteria in the residue. It achieves the technical effect of enabling quick and convenient complete disassembly of the screen, thereby cleaning and maintaining the drum, spiral blades, and inner wall of the screen without dead angles, ensuring a hygienic fermentation environment, and extending the service life of the equipment.

[0018] 2. This utility model solves the problems of independent fermentation and separation processes, cumbersome material transfer, and easy secondary pollution in the prior art by setting the fermentation tank on the top of the support and the separation component below, and directly connecting them through a connecting pipe with a valve. It achieves the technical effect of using gravity to automatically transport materials and realize the integrated operation of direct and continuous solid-liquid separation after fermentation, which simplifies the process flow and improves the processing efficiency.

[0019] 3. This utility model, by setting spiral blades on the rotating drum and setting a baffle between the liquid discharge port and the slag discharge port inside the casing, avoids the problem that the liquid separated during the solid-liquid separation process is prone to splashing into the slag discharge port and causing incomplete separation. It achieves the technical effect of efficiently separating solid and liquid by using centrifugal force and spiral thrust, and physically separating the filtrate and waste residue by the baffle, ensuring that the pure liquid is discharged from the liquid discharge port and the dry solid waste residue is discharged from the slag discharge port. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a solid-liquid separation fermenter proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a solid-liquid separation fermenter proposed in this utility model; Figure 3 This is a schematic diagram of the stirring assembly of a solid-liquid separation fermenter proposed in this utility model; Figure 4 This is a schematic diagram of the separation component of a solid-liquid separation fermenter proposed in this utility model; Figure 5 This is a schematic diagram of the spiral blades of a solid-liquid separation fermenter proposed in this utility model. Figure 6 This is a schematic diagram of the drive assembly of a solid-liquid separation fermenter proposed in this utility model.

[0021] Legend: 1. Support frame; 2. Tank body; 3. Top cover; 4. First latch; 5. Feed inlet; 6. Stirring assembly; 601. First motor; 602. Stirring shaft; 603. Stirring blade; 7. Drive assembly; 701. Second motor; 702. First transmission wheel; 703. Second transmission wheel; 704. Transmission belt; 8. Separation assembly; 801. Rotary drum; 802. Spiral blade; 803. Discharge port; 804. First screen; 805. Second screen; 806. Positioning block; 807. Positioning hole; 808. Fixing bolt; 9. Connecting pipe; 10. Valve; 11. First cover; 12. Second cover; 13. Second latch; 14. Drain outlet; 15. Slag outlet; 16. Baffle plate; 17. Clamp. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Example: Please refer to Figures 1 to 6 This utility model provides a solid-liquid separation fermenter, which aims to solve the structural defects of existing fermentation equipment, such as complex internal structure of solid-liquid separation mechanism, inconvenient disassembly and cleaning, leading to fermentation and deterioration of residues.

[0024] like Figure 1 and Figure 2 As shown, the solid-liquid separation fermenter includes a support frame 1 as the overall support base and a tank body 2 fixedly installed on the top of the support frame 1. The tank body 2 is used to contain the material to be fermented. The support frame 1 is a frame structure to provide a stable support platform. The top opening of the tank body 2 is provided with an openable and closable top cover 3. The edge of the top cover 3 fits against the top edge of the tank body 2 and is sealed by a number of evenly distributed first latches 4. When the first latches 4 are locked, they can ensure the airtightness of the fermentation environment inside the tank body 2, preventing the leakage of fermentation gas and the intrusion of external bacteria. After opening the first latches 4, the top cover 3 can be removed to facilitate cleaning and maintenance of the inside of the tank body 2. An inlet 5 is provided through the eccentric position on the upper surface of the top cover 3. The inlet 5 is used to inject waste water such as baijiu lees, rice residue, or corn pulp residue into the tank body 2.

[0025] like Figure 3 As shown, a stirring assembly 6 is fixedly installed at the center of the top cover 3. The stirring assembly 6 is used to mix and stir the materials in the tank 2. The stirring assembly 6 includes a first motor 601 that is vertically fixed to the upper surface of the top cover 3. The output shaft of the first motor 601 passes downward through the top cover 3 and is coaxially connected to a stirring shaft 602 by a coupling. The stirring shaft 602 extends vertically to the bottom of the inner cavity of the tank 2. Multiple sets of stirring blades 603 are fixedly arranged axially on the outer circumferential wall of the stirring shaft 602. When the stirring blades 603 rotate with the stirring shaft 602, they can agitate the waste residue water in all directions, so that the fermentation raw materials, microorganisms, and water are in uniform contact and promote the discharge of gas.

[0026] A connecting pipe 9 is connected through the lowest point of the tank body 2. The connecting pipe 9 is used to discharge the mixture after fermentation. A valve 10 is installed on the connecting pipe 9 to control the opening and closing. When the valve 10 is opened, the material flows through the connecting pipe 9 to the subsequent separation process under the action of gravity. A first cover 11 with a semi-circular groove structure is fixedly installed on one side of the lower part of the support 1. A second cover 12 is rotatably connected to the top side of the first cover 11 through a hinge. The second cover 12 also has a semi-circular groove structure and can be flipped down to fasten to the first cover 11. The free end of the second cover 12 is fixedly locked to the first cover 11 through the second lock 13. Thus, the first cover 11 and the second cover 12 can form a sealed cylindrical chamber for installing the separation component 8.

[0027] To solve the above-mentioned technical problems, the solid-liquid separation fermenter is equipped with a specially designed separation component 8 inside the chamber formed by the first cover 11 and the second cover 12. Furthermore, the separation component 8 forms a specific cooperation and connection relationship with the external cover and the drive mechanism, thereby realizing the functions of efficient solid-liquid separation of materials and easy disassembly and cleaning.

[0028] Please refer to the following carefully. Figure 4 and Figure 5 The core structure is described in detail below: The separation component 8 includes a core component, a rotating drum 801. The rotating drum 801 has a hollow cylindrical structure, and its two ends are rotatably mounted in the side walls of the first cover 11 through bearing seats. The outer circumferential surface of the rotating drum 801 is integrally formed or welded with a continuously spirally extending spiral blade 802 along its axial length direction. The spiral blade 802 is used to push the solid material towards the slag discharge port 15 during rotation. In order to achieve solid-liquid separation, a screen is provided on the outside of the rotating drum 801 and the spiral blade 802. The screen is not a one-piece structure, but is composed of a first screen 804 and a second screen 805 assembled from two parts. The first screen 804 and the second screen 805 are both semi-cylindrical mesh structures, and their radii of curvature are adapted to the outer diameter of the spiral blade 802.

[0029] To enable rapid assembly, disassembly, and positioning of the screens, multiple positioning blocks 806 are fixedly provided on one end face of both the first screen 804 and the second screen 805. Correspondingly, positioning holes 807 are provided along the circumferential direction on the flange at one end of the drum 801, matching the number and position of the positioning blocks 806. In the assembled state, the positioning blocks 806 are inserted into the positioning holes 807, thereby achieving axial and circumferential positioning of the screens relative to the drum 801. At the same time, connecting edges are provided at the mating edges on both sides of the first screen 804 and the second screen 805, and multiple sets of fixing bolts 808 pass through the connecting edges to fasten the first screen 804 and the second screen 805. The screens are connected to form a complete cylindrical mesh cover. To further enhance the stability, the separation component 8 is also equipped with several clamps 17. The clamps 17 are tightly fitted onto the outer circumferential wall of the first screen 804 and the second screen 805 after they are joined together, firmly locking the screens to the installation position of the drum 801. This split screen design, combined with the positioning block 806 and the clamps 17, ensures that when it is necessary to clean the internal residual impurities, simply unlock the second lock 13, open the second cover 12, loosen the clamps 17 and remove the fixing bolts 808 to easily remove the screens, making the drum 801 and the spiral blades 802 fully exposed, which greatly facilitates cleaning and maintenance.

[0030] Meanwhile, in order to drive the drum 801 to rotate to generate the power required for centrifugal separation, such as Figure 6As shown, a drive assembly 7 is installed at the bottom of the support 1. The drive assembly 7 includes a second motor 701 fixed on the base plate of the support 1. A first transmission wheel 702 is keyed to the output shaft of the second motor 701. A second transmission wheel 703 is fixedly sleeved on one end of the drum 801 that extends out of the left side of the first cover 11. The first transmission wheel 702 and the second transmission wheel 703 are connected by a transmission belt 704. When the second motor 701 is started, the drum 801 and the spiral blade 802 can be driven to rotate at high speed inside the cover through belt drive, thereby applying centrifugal force and spiral thrust to the material entering the interior.

[0031] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, in order to ensure that the separated liquid and solid can be completely separated and collected separately, such as Figure 4 and Figure 5 As shown, partitions 16 are fixedly installed on the inner walls of the first housing 11 and the second housing 12. The partitions 16 are semi-circular ring-shaped plates. When the second housing 12 is fastened to the first housing 11, the upper and lower partitions 16 are joined to form a complete ring-shaped baffle. The partitions 16 are sleeved on the outside of the screen assembly and are located axially between the liquid outlet 14 and the slag outlet 15 at the bottom of the first housing 11. The outer edge of the partitions 16 is tightly attached to the inner wall of the housing, and the inner edge maintains a small gap or contact seal with the outer wall of the screen, thereby dividing the space inside the housing into a liquid collection area on the left and a slag discharge area on the right. The liquid filtered through the screen is blocked by the partitions 16 and can only be collected on the left and discharged through the liquid outlet 14. The solid waste pushed to the right by the spiral blades 802 crosses the plane where the partitions 16 are located and enters the right area and finally falls from the slag outlet 15.

[0032] As another preferred embodiment, in order to allow material to smoothly enter the rotating drum 801 from the stationary connecting pipe 9, such as... Figure 1 and Figure 2 As shown, the left end of the drum 801 is designed to be open or has a feed through hole. The end of the connecting pipe 9 away from the tank 2 passes horizontally through the end cap of the first cover 11 and extends coaxially into the internal cavity of the drum 801. In order to prevent material backflow, the discharge end of the connecting pipe 9 extends into the interior of the drum 801 to a certain depth. Several discharge ports 803 are opened on the circumferential wall of the drum 801 corresponding to the starting section of the spiral blade 802. The mixture entering the inner cavity of the drum 801 can be thrown out through the discharge ports 803 into the separation gap between the spiral blade 802 and the screen under the action of centrifugal force.

[0033] In another preferred embodiment, to improve the sealing and structural strength of the screen mesh connection, the two mating edges of the first screen 804 and the second screen 805 can be designed with outwardly folded flange edges. The fixing bolts 808 pass through the reserved holes of the upper and lower flange edges for fastening connection. At the same time, in order to facilitate the accurate installation of the screen mesh onto the rotating drum 801, the positioning block 806 is designed as a cylindrical pin or prismatic pin shape and is evenly distributed on the end face flange of the left end of the screen mesh. The positioning hole 807 is a blind hole or through hole opened on the corresponding end flange of the rotating drum 801. The precise fit of the two ensures the coaxiality of the screen mesh after installation and prevents vibration or swaying during rotation.

[0034] The working principle of this solid-liquid separation fermenter is as follows: First, the operator needs to confirm that both the first locking buckle 4 and the second locking buckle 13 are in the locked state. Then, the waste residue water, such as baijiu lees, rice residue, and corn pulp residue, is injected into the tank 2 through the feed inlet 5 on the top cover 3. After the filling is completed, the first motor 601 on the top cover 3 is started. The first motor 601 drives the stirring shaft 602 to drive the stirring blade 603 to rotate continuously inside the tank 2. The stirring blade 603 thoroughly stirs the waste residue water in all directions and at a deep level, so that the fermentation raw materials, microbial strains and water are fully and evenly mixed and contacted. This process also helps to release the gas generated during the fermentation process in a timely manner, ensuring that the fermentation reaction proceeds efficiently.

[0035] After the material completes the predetermined fermentation cycle in the tank 2, the valve 10 on the connecting pipe 9 is opened manually or automatically. Under the action of gravity and stirring pressure, the mixture in the tank 2 flows downward along the connecting pipe 9 and directly enters the inside of the drum 801 of the separation component 8. At this time, the second motor 701 in the drive component 7 is started. The second motor 701 drives the second drive wheel 703 and the drum 801 to rotate at high speed through the first drive wheel 702 and the drive belt 704. The mixture entering the inner cavity of the drum 801 is thrown out through the discharge port 803 between the screen and the spiral blade 802 by the action of centrifugal force.

[0036] During the high-speed rotation of the drum 801 and the spiral blades 802, the mixture is subjected to strong centrifugal force and the pushing force of the spiral blades 802. The liquid phase (filtrate) in the material flows out through the mesh of the first screen 804 and the second screen 805. Since the inner walls of the first cover 11 and the second cover 12 are equipped with baffles 16, the liquid that is thrown out is blocked by the baffles 16 and cannot flow to the right. It can only be collected in the liquid collection area on the left and discharged through the drain port 14. At the same time, the solid phase (waste residue) in the mixture is intercepted by the screen due to its large particle size. Under the continuous spiral push of the spiral blades 802, it overcomes the friction force and moves to the right side of the drum 801. Finally, it crosses the area where the baffles 16 are located and reaches the slag discharge area. It is discharged from the slag discharge port 15 at the bottom of the first cover 11, thus achieving efficient solid-liquid separation.

[0037] When a round of operation is completed and the equipment needs to be cleaned and maintained to remove residual impurities, the operator unlocks the second lock 13 and flips the second cover 12 upwards to open it. Then, the clamp 17 that secures the screen is loosened, and the fixing bolts 808 that connect the first screen 804 and the second screen 805 are removed. At this time, the screen can be easily removed from the drum 801 and the positioning block 806, so that the drum 801, the spiral blades 802 and the inner wall of the screen are fully exposed, making it easy for the staff to thoroughly clean the residual waste and prevent the growth of bacteria. Similarly, the first lock 4 can be unlocked to remove the top cover 3 and the inside of the tank 2 and the stirring components 6 can be cleaned. This modular disassembly and assembly design greatly improves the convenience of equipment maintenance and hygiene.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A solid-liquid separation fermenter, comprising: The support (1), the tank (2) installed on the top of the support (1), the top cover (3) sealed to the tank (2) by the first latch (4), and the stirring assembly (6) installed on the top cover (3); the bottom of the tank (2) is connected to the connecting pipe (9), and the valve (10) is installed on the connecting pipe (9); the first cover (11) is fixed to the support (1), and the second cover (12) is rotatably connected to the first cover (11), the second cover (12) is sealed to the first cover (11) by the second latch (13), and the separation assembly (8) is installed in the cavity formed by the first cover (11) and the second cover (12); The separation component (8) is characterized by comprising a rotating drum (801) rotatably mounted in a first housing (11) via a bearing seat, a spiral blade (802) fixed to the surface of the rotating drum (801), and a screen covering the rotating drum (801); the screen comprises a first screen (804) and a second screen (805), the first screen (804) and the second screen (805) being connected and fixed; a positioning block (806) is provided at the left end of the screen, and a positioning hole (807) adapted to the positioning block (806) is provided on the rotating drum (801). After the screen is positioned and connected to the rotating drum (801) via the positioning block (806), the positioning hole (807), and the rotating drum (801), the screen is fixed on the rotating drum (801) by a clamp (17); The end of the connecting pipe (9) away from the tank (2) passes through the first cover (11) and is connected to the drum (801). The drum (801) is provided with a discharge port (803). The bottom of the first cover (11) is provided with a liquid discharge port (14) and a slag discharge port (15). Both the first cover (11) and the second cover (12) are provided with baffles (16).

2. The solid-liquid separation fermenter according to claim 1, characterized in that, The first screen (804) is connected and fixed to the second screen (805) by a fixing bolt (808). After the fixing bolt (808) is removed, the first screen (804) and the second screen (805) can be removed from the drum (801).

3. The solid-liquid separation fermenter according to claim 1, characterized in that, The solid-liquid separation fermenter also includes a drive assembly (7) mounted on a bracket (1). The drive assembly (7) includes a second motor (701), a first drive wheel (702), a second drive wheel (703), and a drive belt (704). The second motor (701) drives the first drive wheel (702) to rotate, and the first drive wheel (702) drives the second drive wheel (703) fixed to the left end of the drum (801) to rotate through the drive belt (704).

4. A solid-liquid separation fermenter according to claim 1, characterized in that, The stirring assembly (6) includes a first motor (601), a stirring shaft (602), and a stirring blade (603); the first motor (601) is mounted on the top cover (3), the first motor (601) drives the stirring shaft (602) to rotate, and the stirring blade (603) is fixed on the stirring shaft (602) and located inside the tank (2).

5. A solid-liquid separation fermenter according to claim 1, characterized in that, The baffle (16) is located between the liquid outlet (14) and the slag outlet (15), and the baffle (16) blocks the liquid phase passing through the screen from entering the slag outlet (15).

6. A solid-liquid separation fermenter according to claim 1, characterized in that, The top cover (3) is provided with a feed inlet (5), and the waste water to be treated is injected into the tank (2) through the feed inlet (5).

7. A solid-liquid separation fermenter according to claim 1, characterized in that, The spiral blade (802) extends axially along the drum (801) and is configured to push the solid phase intercepted by the screen toward the right side of the drum (801).

8. A solid-liquid separation fermenter according to claim 1, characterized in that, After the second cover (12) is rotated open and the clamp (17) and fixing bolt (808) are loosened, the screen is separated from the drum (801) for cleaning impurities; after the first lock (4) is released and the top cover (3) is removed, the inside of the tank (2) and the stirring blade (603) are exposed for cleaning residual materials.

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